Remy 11203 Alternator

Remanufactured Alternator for Hyundai and Kia

Remy Premium Remanufactured alternator 11203 is a 12-volt, 150-amp charging component built with an internal regulator, internal fan, and included pulley. It is remanufactured from an OE manufacturer Valeo core specification for direct replacement service on select Hyundai Sonata and Kia Optima applications.

Fits 2015 Kia Optima, N/A. Fits 2014 Hyundai Sonata, N/A. Fits 2014 Kia Optima, N/A with Korea-built and USA-built 150 amp variants noted in the fitment data.

Key Features

• Remy Premium Remanufactured alternator
• Part number 11203
• 150 amp amperage rating
• 12-volt electrical system
• Internal voltage regulator
• Internal fan design
• Pulley included
• Clockwise rotation
• OE manufacturer reference: Valeo

Detailed Description

This Remy alternator is built for charging-system replacement on 2014-2015 Hyundai and Kia vehicles that use a 150 amp alternator configuration. The Remy Premium Remanufactured line focuses on OE-style electrical replacement parts, and this unit follows the listed electrical and mounting specifications for the application. Part number 11203 is also referenced for cross-checking against OE and aftermarket listings during catalog lookup.

This part cross-references 37300-2G855 and 2621597 for the same application.

What It Helps Address

• Battery warning light caused by alternator output loss
• Low charging voltage at idle or under electrical load
• Dim headlights and weak accessory performance
• Battery drain after driving
• Charging-system faults on Hyundai Sonata and Kia Optima models

Installation Notes and Tips

Verify the vehicle’s alternator configuration before installation, especially on 2014 Kia Optima applications where Korea-built and USA-built variants are listed. Confirm 150 amp specification, clockwise rotation, and pulley style against the removed unit. Check belt condition, battery state of charge, and charging-system wiring before final startup.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured to OE-based specifications using the listed Valeo manufacturer reference for this application. Confirm fitment by year, make, model, and alternator rating before installation.